1. Send your child trick-or-treating with a non-disposable treat bag. Choose something that goes with the theme of your child's costume-a backpack for a mountain climber, a helmet for a football player, a bowl for a chef, a purse for a princess. Or use a reusable shopping bag or a pillow case.
2. Whatever you are giving away to trick-or-treaters, buy less than you normally do and give away one or two instead of handfuls. (Bonus: saves money too!)
3. If possible, trick-or-treat in your own neighborhood instead of driving to someplace else.